General
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Target
c2110e85ca4b04d8b191823d74c7b89d2ac1c339340df25c4bc23a1ef8cb55a5.elf
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Size
5.1MB
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Sample
241109-d35tfayrgm
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MD5
86bb8faea996492c43f67dbe4c0f3bd7
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SHA1
0c2e3cc38c1770fe65ca4a28feb254fdbbe5d5b1
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SHA256
c2110e85ca4b04d8b191823d74c7b89d2ac1c339340df25c4bc23a1ef8cb55a5
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SHA512
dda73408ff0d14050d23b7e9eb732599de018dd16d9e603812e0d17811847790e0fbde1fcacdd0f21c7df9af223081e10b1471d74172c8a99322045c813736ff
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SSDEEP
98304:8cSBHdgN2a7JP97kJru8cYWPAXqWu+60:8cS03eu+6
Behavioral task
behavioral1
Sample
c2110e85ca4b04d8b191823d74c7b89d2ac1c339340df25c4bc23a1ef8cb55a5.elf
Resource
debian12-armhf-20240221-en
Malware Config
Extracted
kaiji
154.201.84.237:7850
Targets
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Target
c2110e85ca4b04d8b191823d74c7b89d2ac1c339340df25c4bc23a1ef8cb55a5.elf
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Size
5.1MB
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MD5
86bb8faea996492c43f67dbe4c0f3bd7
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SHA1
0c2e3cc38c1770fe65ca4a28feb254fdbbe5d5b1
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SHA256
c2110e85ca4b04d8b191823d74c7b89d2ac1c339340df25c4bc23a1ef8cb55a5
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SHA512
dda73408ff0d14050d23b7e9eb732599de018dd16d9e603812e0d17811847790e0fbde1fcacdd0f21c7df9af223081e10b1471d74172c8a99322045c813736ff
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SSDEEP
98304:8cSBHdgN2a7JP97kJru8cYWPAXqWu+60:8cS03eu+6
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Renames multiple (1004) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Executes dropped EXE
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Modifies Watchdog functionality
Malware like Mirai modifies the Watchdog to prevent it restarting an infected system.
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Creates/modifies Cron job
Cron allows running tasks on a schedule, and is commonly used for malware persistence.
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Creates/modifies environment variables
Creating/modifying environment variables is a common persistence mechanism.
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Enumerates running processes
Discovers information about currently running processes on the system
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Modifies systemd
Adds/ modifies systemd service files. Likely to achieve persistence.
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Write file to user bin folder
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Modifies Bash startup script
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
3XDG Autostart Entries
1Boot or Logon Initialization Scripts
1RC Scripts
1Create or Modify System Process
1Systemd Service
1Event Triggered Execution
1Unix Shell Configuration Modification
1Hijack Execution Flow
1Path Interception by PATH Environment Variable
1Scheduled Task/Job
1Cron
1Privilege Escalation
Boot or Logon Autostart Execution
3XDG Autostart Entries
1Boot or Logon Initialization Scripts
1RC Scripts
1Create or Modify System Process
1Systemd Service
1Event Triggered Execution
1Unix Shell Configuration Modification
1Hijack Execution Flow
1Path Interception by PATH Environment Variable
1Scheduled Task/Job
1Cron
1